[INFO] fetching crate reservoir-train 0.1.0...
[INFO] testing reservoir-train-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate reservoir-train 0.1.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate reservoir-train 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate reservoir-train 0.1.0
[INFO] tweaked toml for crates.io crate reservoir-train 0.1.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate reservoir-train 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate reservoir-train 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6594efc0c9e9eda415e9f8e37be61b9d699a860ac0c221d50b9a6bbb7d43d70
[INFO] running `Command { std: "docker" "start" "-a" "f6594efc0c9e9eda415e9f8e37be61b9d699a860ac0c221d50b9a6bbb7d43d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6594efc0c9e9eda415e9f8e37be61b9d699a860ac0c221d50b9a6bbb7d43d70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6594efc0c9e9eda415e9f8e37be61b9d699a860ac0c221d50b9a6bbb7d43d70", kill_on_drop: false }`
[INFO] [stdout] f6594efc0c9e9eda415e9f8e37be61b9d699a860ac0c221d50b9a6bbb7d43d70
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 296da36e43ac5ceae6e65b0227075725d061026206113b90a152812af5c5197c
[INFO] running `Command { std: "docker" "start" "-a" "296da36e43ac5ceae6e65b0227075725d061026206113b90a152812af5c5197c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]    Compiling paste v1.0.15
[INFO] [stderr]    Compiling bytemuck v1.24.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling zerocopy v0.8.31
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling heapless v0.9.2
[INFO] [stderr]    Compiling safe_arch v0.7.4
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling wide v0.7.33
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling simba v0.9.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling nalgebra v0.33.2
[INFO] [stderr]    Compiling reservoir-core v0.1.0
[INFO] [stderr]    Compiling reservoir-infer v0.1.0
[INFO] [stderr]    Compiling reservoir-train v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.51s
[INFO] running `Command { std: "docker" "inspect" "296da36e43ac5ceae6e65b0227075725d061026206113b90a152812af5c5197c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296da36e43ac5ceae6e65b0227075725d061026206113b90a152812af5c5197c", kill_on_drop: false }`
[INFO] [stdout] 296da36e43ac5ceae6e65b0227075725d061026206113b90a152812af5c5197c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a946c6d489b00c9e3c36fbb27a1a0abdb16b3ced9f72e276f1f2225bb4a57db4
[INFO] running `Command { std: "docker" "start" "-a" "a946c6d489b00c9e3c36fbb27a1a0abdb16b3ced9f72e276f1f2225bb4a57db4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling approx v0.5.1
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling num-rational v0.4.2
[INFO] [stderr]    Compiling simba v0.9.1
[INFO] [stderr]    Compiling nalgebra v0.33.2
[INFO] [stderr]    Compiling reservoir-core v0.1.0
[INFO] [stderr]    Compiling reservoir-infer v0.1.0
[INFO] [stderr]    Compiling reservoir-datasets v0.1.0
[INFO] [stderr]    Compiling reservoir-train v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 22.12s
[INFO] running `Command { std: "docker" "inspect" "a946c6d489b00c9e3c36fbb27a1a0abdb16b3ced9f72e276f1f2225bb4a57db4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a946c6d489b00c9e3c36fbb27a1a0abdb16b3ced9f72e276f1f2225bb4a57db4", kill_on_drop: false }`
[INFO] [stdout] a946c6d489b00c9e3c36fbb27a1a0abdb16b3ced9f72e276f1f2225bb4a57db4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3e13b88f1dfe63d70fc1f6ccb0bc9cc5eeaf20003ead69109077b623cae68a70
[INFO] running `Command { std: "docker" "start" "-a" "3e13b88f1dfe63d70fc1f6ccb0bc9cc5eeaf20003ead69109077b623cae68a70", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/reservoir_train-f6930738422eb646)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test trainer::lasso::tests::test_lasso_trainer_high_alpha_shrinks_weights_to_zero ... ok
[INFO] [stdout] test trainer::ridge::tests::test_ridge_trainer_errors ... ok
[INFO] [stdout] test esn::tests::test_esn_builder_sparse_shapes_and_basic_invariants ... ok
[INFO] [stdout] test trainer::lasso::tests::test_lasso_trainer_errors ... ok
[INFO] [stdout] test trainer::ridge::tests::test_ridge_trainer_fit_recovers_linear_weights ... ok
[INFO] [stdout] test esn::tests::test_esn_builder_dense_shapes_and_ext_dim ... ok
[INFO] [stdout] test esn::tests::test_esn_builder_dense_spectral_radius_close ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests reservoir_train
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/codegen.rs - codegen::StaticModelGenerator (line 43) - compile ... ok
[INFO] [stdout] test src/esn.rs - esn::ESNFitRidge (line 58) - compile ... ok
[INFO] [stdout] test src/esn.rs - esn::ESNFitRidge (line 43) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.12s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3e13b88f1dfe63d70fc1f6ccb0bc9cc5eeaf20003ead69109077b623cae68a70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e13b88f1dfe63d70fc1f6ccb0bc9cc5eeaf20003ead69109077b623cae68a70", kill_on_drop: false }`
[INFO] [stdout] 3e13b88f1dfe63d70fc1f6ccb0bc9cc5eeaf20003ead69109077b623cae68a70
